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Finding the Fourth Proportional to 512,226, 767,941.08 and 331,930.56

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Solution

The fourth proportional to 512,226, 767,941.08 and 331,930.56 is: 497,637.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,226 : 767,941.08 = 331,930.56 : x
  2. Step 2: Convert to fraction form
    512,226/767,941.08 = 331,930.56/x
  3. Step 3: Cross multiply
    512,226x = 767,941.08 × 331,930.56
  4. Step 4: Simplify right side
    512,226x = 254,903,112,731.41
  5. Step 5: Solve for x
    x = 254,903,112,731.41/512,226
  6. Step 6: Final answer
    x = 497,637.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.